This effect is already actively searched for in experiments employing continuous wave lasers in combination with high-finesse cavities as probe and macroscopic, quasi-constant and quasi-static magnetic fields of a few Tesla to induce the effect [1]}, [2]}, [3]}, [4]} resorting to the scheme devised by Ref. [5]}.
See Refs. [6]}, [7]}, [8]}, [9]}, [10]}, [11]}, [12]}, [13]}, [14]}, [15]}, [16]}, [17]}, [18]}, [19]}, [20]}, [21]}, [22]}, [23]}, [24]}, [25]} for proposals aiming at probing the effect with optical, x-ray, synchrotron or gamma radiation and high-intensity lasers as pump. For proposals to measure vacuum birefringence induced by a magnetic field with high-energy photons, cf. Ref. [26]}, [27]}.
